CN114812764A - Oil quantity metering system for filling edible oil - Google Patents
Oil quantity metering system for filling edible oil Download PDFInfo
- Publication number
- CN114812764A CN114812764A CN202111352034.3A CN202111352034A CN114812764A CN 114812764 A CN114812764 A CN 114812764A CN 202111352034 A CN202111352034 A CN 202111352034A CN 114812764 A CN114812764 A CN 114812764A
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- China
- Prior art keywords
- resistor
- capacitor
- operational amplifier
- metering
- edible oil
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Links
- 239000008157 edible vegetable oil Substances 0.000 title claims abstract description 19
- 239000003921 oil Substances 0.000 title claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 17
- 238000005303 weighing Methods 0.000 claims abstract description 17
- 230000009467 reduction Effects 0.000 claims abstract description 8
- 239000003990 capacitor Substances 0.000 claims description 32
- 238000005259 measurement Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 8
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 230000003321 amplification Effects 0.000 abstract description 3
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006052 feed supplement Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
- G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B3/26—Methods or devices for controlling the quantity of the material fed or filled
- B65B3/28—Methods or devices for controlling the quantity of the material fed or filled by weighing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Fats And Perfumes (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
Abstract
The invention discloses an oil mass metering system for filling edible oil, which comprises a metering detection module and a data processing module, wherein the metering detection module comprises a weighing sensor arranged at the bottom of a metering barrel, a detection signal of the weighing sensor is processed by an amplifying and filtering regulating circuit and a noise reduction stabilizing circuit in sequence and then is sent into the data processing module, the amplifying and filtering regulating circuit utilizes a band-pass filter to carry out accurate filtering, external high-frequency interference is well eliminated, the precision of the detection signal is improved, phase compensation is added, the zero drift influence caused by the ambient temperature is effectively avoided, and the stability of the output of the detection signal is improved; the stabilizing circuit that makes an uproar falls adds LC parallel resonance at the amplification process and carries out the trapped wave to power frequency signal, effectively restraines power frequency interference, guarantees accurate nature and the stability of controller to the detected signal receipt, and then promotes the accuracy nature that the detection weighed, guarantees that the edible oil filling control is accurate effective.
Description
Technical Field
The invention relates to the technical field of edible oil filling, in particular to an oil mass metering system for edible oil filling.
Background
At present, the edible oil filling equipment widely adopts four modes of liquid level metering, speed metering, piston volume metering or weight increasing method electronic weighing. Traditional filling mode exists that the measurement accuracy is low not enough, it is not suitable to the edible oil that viscosity is high, current oil mass metering device is at the bottom installation weighing sensor of measuring tank usually, for example, application number is 201120108504.7, the name is the utility model patent of "an edible oil liquid filling machine", PLC controlling means accepts the weight signal of weighing sensor output through weight conversion module among this technical scheme, the action of each valve of back control of carrying out logical operation, realize the feed supplement, the filling, the unloading, the logical control of all processes such as pressure boost, although this technical scheme has adopted airtight area pressure filling at the filling in-process, but weighing sensor still can receive external environment temperature and power frequency at the signal output in-process and cause the interference, thereby influence the measurement accuracy.
The present invention provides a new solution to this problem.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the present invention aims to provide an oil quantity metering system for filling edible oil.
The technical scheme for solving the problem is as follows: an oil mass measurement system for edible oil filling, including measurement detection module and data processing module, measurement detection module is including setting up the weighing sensor in the metering tank bottom, weighing sensor's detected signal loops through and enlargies filtering regulating circuit and falls and send into after the stabilizing circuit that makes an uproar handles in the data processing module, data processing module includes controller and display, the input of controller is connected fall the stabilizing circuit's of making an uproar output, the controller passes through data serial ports and connects the display.
Further, the amplifying, filtering and adjusting circuit comprises a resistor R1, one end of a resistor R1 is connected with one end of a capacitor C1, one end of a resistor R2 and a signal output end of the weighing sensor, the other ends of a resistor R1 and a capacitor C1 are grounded, the other end of the resistor R2 is connected with one ends of a resistor R3 and a resistor R5, the other end of the resistor R3 is connected with an output end of an operational amplifier AR1 and is connected with an inverting input end of an operational amplifier AR1, a non-inverting input end of an AR2 and one end of a capacitor C3 through a resistor R4, the other end of the resistor R5 is connected with an inverting input end of an operational amplifier AR2 and is connected with the output end of the operational amplifier AR2 and the other end of a capacitor C3 through a resistor R6 and a capacitor C2 which are connected in parallel, the other end of a capacitor C3 is connected with the non-inverting input end of the operational amplifier AR1 and one end of a capacitor C4 through a resistor R7, and the other end of a capacitor C4 is grounded.
Further, the noise reduction stabilizing circuit comprises a MOS transistor Q1, a gate of the MOS transistor Q1 is connected to an output end of the operational amplifier AR2, a source of the MOS transistor Q1 is grounded through a resistor R8 and a zener diode DZ1 which are connected in parallel, a drain of the MOS transistor Q1 is connected to one end of a capacitor C5, an inductor L1 and one end of a resistor R5, and the other end of the capacitor C5 and the other end of the inductor L1 are connected to the controller.
Through the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the amplifying filtering adjusting circuit is adopted to process the detection signal, the band-pass filter composed of the operational amplifier AR1 and AR2 is utilized to carry out accurate filtering, external high-frequency interference is well eliminated, the detection signal precision is improved, phase compensation is added to effectively avoid the influence of null shift caused by the ambient temperature, and the stability of the detection signal output is improved.
2. The noise reduction stabilizing circuit adopts an MOS (metal oxide semiconductor) tube Q1 to follow and amplify the output signal of the amplification filtering adjusting circuit, and adds LC parallel resonance to trap the power frequency signal in the amplification process, so that the power frequency interference is effectively inhibited, and the accuracy and the stability of the detection signal receiving of the controller are ensured.
3. After the detection signals of the symmetrical weight sensors are conditioned, the interference of the external environment temperature and the power frequency signals to the detection signals is effectively avoided, the weighing detection accuracy is improved, and the accuracy and the effectiveness of the edible oil filling control are ensured.
Drawings
FIG. 1 is a schematic diagram of the connection of a metering and testing module according to the present invention.
Detailed Description
The foregoing and other technical and other features and advantages of the invention will be apparent from the following more particular description of the embodiments of the invention, as illustrated in the accompanying drawings in which reference is made to FIG. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
An oil mass metering system for edible oil filling, including measurement detection module and data processing module, measurement detection module is including setting up the weighing sensor in the metering tank bottom, weighing sensor's detected signal loops through and enlargies filtering regulating circuit and falls and send into after the stabilizing circuit that makes an uproar handles in the data processing module, data processing module includes controller and display, the input of controller is connected fall the stabilizing circuit's of making an uproar output, the controller passes through data serial ports and connects the display.
As shown in fig. 1, the amplifying, filtering and adjusting circuit includes a resistor R1, one end of a resistor R1 is connected to one end of a capacitor C1, one end of a resistor R2 and a signal output end of the load cell, the other ends of a resistor R1 and a capacitor C1 are grounded, the other end of a resistor R2 is connected to one ends of a resistor R3 and a resistor R5, the other end of a resistor R3 is connected to an output end of an operational amplifier AR1 and is connected to an inverting input end of an operational amplifier AR1, a non-inverting input end of an AR2 and one end of a capacitor C3 through a resistor R4, the other end of a resistor R5 is connected to an inverting input end of an operational amplifier AR2 and is connected to the output end of the operational amplifier AR2 and the other end of the capacitor C3 through a resistor R6 and a capacitor C2 which are connected in parallel, the other end of the capacitor C3 is connected to the non-inverting input end of an operational amplifier AR1 and one end of a capacitor C4 through a resistor R7, and the other end of a capacitor C4 is grounded.
The noise reduction stabilizing circuit comprises a MOS tube Q1, the grid electrode of the MOS tube Q1 is connected with the output end of an operational amplifier AR2, the source electrode of the MOS tube Q1 is grounded through a resistor R8 and a voltage stabilizing diode DZ1 which are connected in parallel, the drain electrode of the MOS tube Q1 is connected with one end of a capacitor C5, an inductor L1 and one end of a resistor R5, and the other end of the capacitor C5 and the other end of the inductor L1 are connected with the controller.
When the device is used specifically, the weighing sensor detects the change of the quality of the edible oil in the metering tank in real time and converts the change into an electric signal to be output; in order to eliminate the influence of external environment interference, firstly, an amplifying, filtering and adjusting circuit is adopted to process a detection signal, wherein a resistor R1 and a capacitor C1 form RC filtering to perform low-pass filtering on the detection signal, mechanical noise interference generated in the filling process is eliminated, then the detection signal is sent into a band-pass filter consisting of an operational amplifier AR1 and an AR2 to perform further accurate filtering, a T-shaped RC filtering network consisting of resistance-capacitance elements forms band-pass filtering under the driving of the operational amplifier, external high-frequency interference is eliminated well, and the accuracy of the detection signal is improved; simultaneously, resistance R6 and electric capacity C2 form phase compensation at the feedback end of fortune storage device AR2, effectively avoid producing the null drift influence because of ambient temperature, promote the stability of detecting signal output.
The noise reduction stabilizing circuit adopts an MOS tube Q1 to follow and amplify an output signal of the amplifying and filtering adjusting circuit, LC parallel resonance formed by an inductor L1 and a capacitor C5 is added in the amplifying process to trap a power frequency signal, power frequency interference is effectively inhibited, a voltage stabilizing diode DZ1 is arranged at a source end of the MOS tube Q1 to play a stabilizing role in the trapping process, and therefore the accuracy and the stability of the controller for receiving detection signals are guaranteed.
The controller processes the received detection signal and then calculates the real-time filling quality of the edible oil in the metering tank, the filling is stopped when a system that the filling quality reaches sets a target value, and the filling quality value is sent to the display to be displayed, so that the checking by workers is facilitated. After the detection signals of the symmetrical weight sensors are conditioned, the interference of the external environment temperature and the power frequency signals to the detection signals is effectively avoided, the weighing detection accuracy is improved, and the accuracy and the effectiveness of the edible oil filling control are ensured.
While the invention has been described in further detail with reference to specific embodiments thereof, it is not intended that the invention be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.
Claims (3)
1. A oil mass measurement system for edible oil filling, including measurement detection module and data processing module, its characterized in that: the metering detection module comprises a weighing sensor arranged at the bottom of the metering barrel, detection signals of the weighing sensor are sequentially processed by an amplifying and filtering adjusting circuit and a noise reduction stabilizing circuit and then sent into the data processing module, the data processing module comprises a controller and a display, the input end of the controller is connected with the output end of the noise reduction stabilizing circuit, and the controller is connected with the display through a data serial port.
2. The oil quantity metering system for edible oil filling according to claim 1, wherein: the amplifying, filtering and adjusting circuit comprises a resistor R1, one end of a resistor R1 is connected with one end of a capacitor C1 and one end of a resistor R2 and a signal output end of the weighing sensor, the other ends of a resistor R1 and a capacitor C1 are grounded, the other end of the resistor R2 is connected with one ends of a resistor R3 and a resistor R5, the other end of the resistor R3 is connected with an output end of an operational amplifier AR1 and is connected with an inverting input end of the operational amplifier AR1, a non-inverting input end of the AR2 and one end of a capacitor C3 through a resistor R4, the other end of the resistor R5 is connected with an inverting input end of the operational amplifier AR2 and is connected with the output end of the operational amplifier AR2 and the other end of the capacitor C3 through a resistor R6 and a capacitor C2 which are connected in parallel, the other end of a capacitor C3 is connected with the non-inverting input end of the operational amplifier AR1 and one end of a capacitor C4 through a resistor R7, and the other end of the capacitor C4 is grounded.
3. The oil quantity metering system for edible oil filling according to claim 2, wherein: the noise reduction stabilizing circuit comprises a MOS tube Q1, the grid electrode of the MOS tube Q1 is connected with the output end of an operational amplifier AR2, the source electrode of the MOS tube Q1 is grounded through a resistor R8 and a voltage stabilizing diode DZ1 which are connected in parallel, the drain electrode of the MOS tube Q1 is connected with one end of a capacitor C5, an inductor L1 and one end of a resistor R5, and the other end of the capacitor C5 and the other end of the inductor L1 are connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111352034.3A CN114812764B (en) | 2021-11-16 | 2021-11-16 | Oil quantity metering system for filling edible oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111352034.3A CN114812764B (en) | 2021-11-16 | 2021-11-16 | Oil quantity metering system for filling edible oil |
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| Publication Number | Publication Date |
|---|---|
| CN114812764A true CN114812764A (en) | 2022-07-29 |
| CN114812764B CN114812764B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111352034.3A Active CN114812764B (en) | 2021-11-16 | 2021-11-16 | Oil quantity metering system for filling edible oil |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204236495U (en) * | 2014-10-14 | 2015-04-01 | 中州大学 | A kind of noise reduction system of shaft temperature detector |
| CN211919150U (en) * | 2020-04-14 | 2020-11-13 | 漯河市百威生物技术有限公司 | Water-soluble fertilizer finished product weighing system |
| CN212058990U (en) * | 2020-06-18 | 2020-12-01 | 河南顺圆水处理技术有限公司 | Surface water quality treatment monitoring system |
| CN212082472U (en) * | 2020-05-15 | 2020-12-04 | 开封宏达自动化仪表有限公司 | Precision type intelligent vortex shedding flowmeter |
| CN112506113A (en) * | 2020-12-29 | 2021-03-16 | 无锡晓群机电科技有限公司 | Smart city electric power big data information acquisition system |
| CN213286712U (en) * | 2020-08-19 | 2021-05-28 | 河南森源集团高强电瓷有限公司 | High-voltage electric porcelain ball-milling raw material proportioning system |
| CN113391085A (en) * | 2021-06-16 | 2021-09-14 | 沧州市科技创业中心 | Sensor output filter device |
-
2021
- 2021-11-16 CN CN202111352034.3A patent/CN114812764B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204236495U (en) * | 2014-10-14 | 2015-04-01 | 中州大学 | A kind of noise reduction system of shaft temperature detector |
| CN211919150U (en) * | 2020-04-14 | 2020-11-13 | 漯河市百威生物技术有限公司 | Water-soluble fertilizer finished product weighing system |
| CN212082472U (en) * | 2020-05-15 | 2020-12-04 | 开封宏达自动化仪表有限公司 | Precision type intelligent vortex shedding flowmeter |
| CN212058990U (en) * | 2020-06-18 | 2020-12-01 | 河南顺圆水处理技术有限公司 | Surface water quality treatment monitoring system |
| CN213286712U (en) * | 2020-08-19 | 2021-05-28 | 河南森源集团高强电瓷有限公司 | High-voltage electric porcelain ball-milling raw material proportioning system |
| CN112506113A (en) * | 2020-12-29 | 2021-03-16 | 无锡晓群机电科技有限公司 | Smart city electric power big data information acquisition system |
| CN113391085A (en) * | 2021-06-16 | 2021-09-14 | 沧州市科技创业中心 | Sensor output filter device |
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| CN114812764B (en) | 2024-04-30 |
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